Arizona Selected Sundials

Click on any photo or city name to get more sundial details and more photos.
 
Bullhead City Arizona USA Horizontal Monofilar Dial 458
This horizontal dial is an engraved flagstone approximately 42 inches in diameter designed by John Carmichael. The monofilar gnomon is a stranded brass cable that extends upward to a height of 18 inches and is held taught by a rock counterweight. Hour lines and direction of sunrise and sunset for the equinoxes and solstices are given. Also has noon Mark, The Equation of time, and a 32-point Compass Rosette
 
Bumble Bee Arizona USA Horizontal Dial 389
Horizontal dial approximately 10 feet in diameter. Made of concrete and granite. Commemorates Arizona Dept. of Transportation employees who were killed in the line of duty.
 
Carefree Arizona USA Horizontal Dial 1
A 90 ft. diameter horizontal dial with a large reflecting pool beneath the gnomon designed by John Yellott. The hour markers are 4 ft. diameter concrete circles. The dial is designed to show solar time corrected for the time zone offset. Thus the hour markers have been moved ahead of the solar time position. The hour lines are separated by alternating dark and light colored stones. The gnomon itself is 4 ft. wide, 62 ft. long and the tip is 35 ft. high. A pilot dial at a scale of 1/4 in. =1ft. is at the South end of the large dial. It is constructed of gold-anodized aluminum with time lines at 10 minute intervals. An equation of time plaque is nearby. The upper surface of the dial formerly served as a solar water heater to provide hot water to the city's first office building. Numerals face outward, so that they are more easily read by viewers.
 
Casa Grande Arizona USA Horizontal Monofilar Dial 457
This horizontal dial is an engraved flagstone approximately 40 inches in diameter designed by John Carmichael. The monofilar gnomon is a stranded brass cable that extends upward to a height of 15 inches and is held taught by a rock counterweight. The engraved stone shows time marks to 5 minutes, corrected for longitude. Time and direction of sunrise and sunset for the equinoxes and solstices are also given.
 
Flagstaff Arizona USA Horizontal Dial 313
This cast iron horizontal dial is set in a 6 foot diameter limestone base 2 feet off the ground. The interior region of the dial face is a white tile mosaic. The gnomon has pictures of buffalo and a horned lizard done in relief. The edge of the dial is a cast iron ring, upon which are four cardinal points and hour markers from 5am to 7pm, likewise in cast iron. The dial is corrected to mountain standard time.
 
Flagstaff Arizona USA Horizontal Dial 3
Built by Dr. Art Adel (now deceased). Contact Mrs. Adel to arrange viewing.
 
Flagstaff Arizona USA Horizontal Dial 2
Small horizontal dial on carved pedestal. It was a gift from the observatory staff to Dr. Lowell. In a thank you note to his staff, Lowell stated," Nothing could have pleased me more than that Sundial clothed with its mountain cloak, symbolic of when the sun always shines. It shall be inscribed with all your names and set up on the top of Mars Hill …" A square stone base supports a tapering cylindrical column. At the top is a square plinth supporting the small horizontal dial. As of March 1996, the dial has resided inside the observatory building.
 
Gold Canyon Arizona USA Horizontal Dial 657
Built as an Eagle Scout project, this 10 x 5 foot semicircular concrete and steel dial features a 3 foot tall figure of a coyote as the gnomon. The tip of the coyote's nose functions as a point-in-space gnomon. The figure is placed well forward, limiting the times and dates the nose-tip shadow will fall within the hour circle to about 9 am to 3 pm on dates near the summer solstice.
 
Lake Havasu City Arizona USA Horizontal Dial 647
An 8 x 9 foot horizontal dial of powder coat painted aluminum panels 1/4-inch thick assembled onto a concrete pad. Perimeter shows Arabic hour numerals 9-2 with 5-minute dots placed in arcs below the numerals. EOT correction is provided through four graphics on the dial face under the gnomon and sliding "T Square" indicators showing the corrections on rulers. EOT values are corrected for longitude. Dial face plates are supported on poured concrete pad.
 
Mesa Arizona USA Equatorial Dial 302
Very handsome equatorial dial of bronze and marble, approximately 50 in. diameter. Sits on a triangular base atop marble pedestal 39 in. x39 in. x24 in. high. Inside brick-walled enclosure about 21 in. square.
 
Oracle Arizona USA Horizontal Dial 6
A brightly colored horizontal dial 4 feet in diameter. Dial is white ceramic with tile edging. Hour lines are bright arrows, adjusted for local longitude. At the north point is a graph of the Equation of Time and at the south point is the bright face of a sun. Ringing the dial is an inscription. Base is a concrete "flower" approximately 2 feet high. Near by is an approximately 15 foot long Noon Mark or Meridian Line with the months of the year marked on it. The shadow is cast by a small electric power pole.
 
Oro Valley Arizona USA Combination Dial 713
A massive, 24 foot tall combination almost-vertical and calendrical dial facing southwest so that northeast bound traffic can easily view the dial. The 13 foot diameter vertical ring dial of welded, zinc-coated steel declines 45° west and reclines 12° from vertical. The 3 inch diameter, 20 foot long polar-pointing gnomon tube is supported in space by a 10 inch diameter support tube with a cone nodus on the bottom end. The vertical dial shows longitude-corrected MST with hour and half-hour marks and Arabic numerals on the outer stainless steel chapter ring.
 
Phoenix Arizona USA Vertical Dial 772
A dual-vertical cube dial with two 12 inch square dial plates declining 45° south of east and south of west. The east face shows hour lines for 6 AM to 12 PM; the west face shows hour lines for 12 PM to 6 PM. Roman numerals mark three hour lines on each face.
 
Phoenix Arizona USA Horizontal Dial 578
A 10 foot diameter horizontal dial with steel gnomon. Live desert plants fill planters delineated by hour lines.
 
Phoenix Arizona USA Horizontal Dial 7
This large ground-level horizontal dial designed by Charles Keener. Dial is a circular concrete slab 62 in. diameter and 8 in. thick. The gnomon is 30 in. high, 41 in. substile, 55 in. stile. Dial has Roman numerals. Unfortunately, the 6AM and 8AM numerals are missing. Ground level dial composed of concrete slab 62 inch diameter and 8 inch thick.
 
Prescott Arizona USA Vertical Dial 585
An 18x20 inch cast bronze vertical dial declining 22° west of south on the wall of a private home. Dial face includes a stylized sun and outline of Thumb Butte, a prominent local landmark. Dial can be viewed by first contacting the owner.
 
Sahuarita Arizona USA Azimuth Dial 623
An unusual dial by John Carmichael using a "Point in Space" gnomon; only the shadow cast by the tip of the 6 inch angled rod gnomon is used to indicate time. The dial face is poured concrete with inlayed metal longitude-corrected hour lines, and is nearly horizontal, inclining just 1.27 degrees for water drainage. It declines 89.28 degrees east of south. Bronze plaque has User Instructions and an Equation of Time Graph. Dial functions best during the middle part of the day. The style shadow lies outside of the dial face boundaries in the early mornings and late afternoons. The massive elaborate base that supports the gnomon rod is made from stacked flagstone. A waterfall cascades from the back south side of the base and flows a long distance to the south through a canal that has several water fountains and pools along the way. Around the base is a planter with bedding plants. The base and gnomon are lighted at night.
 
Sun City Arizona USA Horizontal Dial 8
A monumental horizontal dial in a gravel rock garden. Gnomon is 22 feet high, 40 feet long built from a structural steel "I" beam 64 feet long. Gnomon is supported by three concrete triangular legs and is encased in concrete with four shadow-casting style edges. A circular concrete walkway under the gnomon has painted Roman numeral hour markers.
 
Superior Arizona USA Horizontal Dial 105
A small 8 in. bronze horizontal dial with raised Arabic numerals marking the hours. The dial is set on a massive cobble stone and mortar base suitable for sitting upon while watching the hours.
 
Surprise Arizona USA Horizontal Dial 574
A 108-inch diameter granite dial face with a 92-inch steel gnomon and nodus. Dial furniture includes a solar noon mark, sunrise and sunset points on the solstices and equinoxes, ecliptic date lines and an EOT graph.
 
Tempe Arizona USA Equatorial Dial 75
An equatorial dial designed by R. Newton Mayall with a "curved triangular gnomon over a curved face approximately 1ft. wide. Tells the day of the year and standard time noon." Has a plaque explaining the Equation of Time.
 
Tempe Arizona USA Horizontal Dial 23
A horizontal dial from Picture Rock Sandstone with 24k gold-plated inlaid brass fittings, 25 inches wide by 36 inches long, with gnomon 12.5 inches high. Gnomon is 1.5 inches thick. Total sundial weight 110 lbs.
 
Tempe Arizona USA Horizontal Dial 9
A 17 inch diameter bronze horizontal dial, mounted in a metal collar that slopes 5 deg S to correct for Tempe latitude of 33 N. The dial face has radiating hour, half-hour and 15-minute lines, encircled by the inscription "Grow old along with me. The best is yet to be." On the outside of the inscription are Roman numerals from VI to VI. Filling out the outer circle is inscribed "Tempe Garden Club". The dial sits on top of a square pedestal approximately 2 feet high
 
Tucson Arizona USA Projection Dial 735
A fused silica glass spherical lens projects a solar image spot onto the inner surface of a spherical segment of glass with a frosted area inscribed with hour lines and Arabic hour numerals. Time is read from the bright spot of light on the frosted surface while standing under the dial. Dial is mounted atop a pipe pillar on the patio of the Visitor Center.
 
Tucson Arizona USA Vertical Dial 711
An 84x47 inch vertical dial declining 18° east of south on the outside wall of a private residence. Roman hour numerals are on 8 inch square hand-painted ceramic tiles. The gnomon and support are welded wrought iron painted black. A hand painted EOT graph is shown on a matching ceramic tile.
 
Tucson Arizona USA Vertical Dial 579
Located on a side street wall of a private home, this 4x6 foot due south vertical dial uses welded iron numerals and gnomon. Built in 1954, this is the oldest known sundial in Tucson. Designed using Mayall and Mayall's "Sundials" and described in detail in April, 1954 Home and Garden Magazine.
 
Tucson Arizona USA Vertical Dial 566
A vertical 44x92 inch dial declining 4.53° east of south painted on the rough textured stucco wall of a private home. The 2x4 inch tall conical horizontal gnomon is gold plated brass. The dial face is hand painted with elastomeric acrylic exterior house paint. The horizontal conical gnomon optimizes the nodus shadow at the location low latitude to show time and date. Dial face shows date/declination lines, solar noon mark and hour, 1/2-hour and 15 minute lines. To arrange viewing, contact owner Christina McVie.
 
Tucson Arizona USA Vertical Dial 544
Four vertical dials on the faces of a 100-inch tall redwood cupola on the roof of a private residence. The 21-inch dial faces are kiln-fired porcelain on steel; the bezels and gnomons are copper. The dials are longitude corrected for MST. Three dials have solar noon marks.
 
Tucson Arizona USA Vertical Dial 533
A declining vertical stained glass "Gecko" sundial 58 x 20 inches consisting of 153 colored glass pieces and exterior rod gnomon with triangular base. Paintings on 11 glass pieces use vitreous kiln-fired enamels and stains. Dial and four adjacent panels consisting of 540 glass pieces are set in bay window overlooking succulent garden containing additional sundials. Dial glass panel includes painting of a Tucson Banded Gecko stalking fly, a star field, sun face and solar noon mark. Dial declines 27.4° east of south. Contact owner John Carmichael to arrange viewing.
 
Tucson Arizona USA Horizontal Dial 465
A simple square horizontal dial 20 x 20 inches carved in a 3 inch block of granite with a bronze gnomon. The dial has hour lines from 6am to 6pm for local solar time. No graph or table for longitude and Equation of Time corrections. Dial sits atop a 3 foot square pedestal.
 
Tucson Arizona USA Horizontal Dial 464
A horizontal sundial 45 x 61 inches with a monofilar brass cable gnomon and tension counterweight. This is the largest horizontal sundial in the US carved on a single piece of stone, taking two years to build. The dial has hour lines from 5am to 8pm, corrected for longitude. Each hour line has an analemma and in the lower right of the dial is a graph of the Equation of Time. A nodus on the wire gnomon indicates date, with declension lines for summer and winter solstice, equinox, and date lines. Time and direction of sunrise and sunset are marked on the equinox and solstice lines. At the base of the gnomon is a 16-point compass rose. On the left side of the dial is a table for telling time by moon shadows. In the center is a copy of the hands from "The Creation" by Michelangelo.
 
Tucson Arizona USA Vertical Dial 456
This is a 10 x 10 foot south vertical wall dial with hour lines painted on the wall that are corrected for longitude. A unique feature of this dial is the time scale can be rotated forward or back slightly to compensate for the Equation of Time. However, because only the hours are marked, precise minute reading is difficult. Welded steel was used to make the time marker ring and gnomon.
 
Tucson Arizona USA Horizontal Dial 14
A 25 inch circular engraved horizontal dial in a large irregular stone. Surrounding the dial on the stone are zodiacal signs and a beautiful engraved drawing of the surrounding mountains. The designer, John Carmichael, calls these dials "horizontal string heliochronometers" since the gnomon is a brass cable held very straight under tension from a heavy counterweight which is suspended from a brass hinged lever.
 
Tucson Arizona USA Analemmatic Dial 13
Painted analemma on sidewalk outside planetarium entrance. Approx. 15 ft. wide. The dial is corrected for longitude and has a central analemma. Painted instructions instruct one to stand on a north-south meridian line. Unfortunately during a restoration, the north-south meridian line was not repainted. Since the analemma has dates still visible, people mistakenly stand on the analemma instead of the meridian, causing time errors.
 
Tucson Arizona USA Horizontal Dial 12
This concrete and adobe brick horizontal dial is approximately 8 1/2 feet in diameter with a triangular gnomon 25 x 32 inches. This is a large, but very plain sundial except for the shiny chrome plated gnomon. It lacks numerals, but has hour points and shows the cardinal points. The dial is corrected for longitude. The pedestal is missing some bricks and is adorned with graffiti.
 
Tucson Arizona USA Sun Circle Dial 11
A "Stonehenge" or sun circle dial designed by Chris Tanz, Susan Holman, Paul Edwards and with the help of Will Grundy and sponsored by the Pima County Flood Control and Transportation Dept. The structure uses a broken circle of walls to create designs made of light based on the movement of the sun. The circle, 50 feet in diameter with 8 foot walls is modeled loosely on the Casa Rinconada kiva ruins in Chaco Canyon, N.M. The walls are of integrally colored concrete block, concrete, and flagstone. Lines on a bronze plaque indicate north and south and the direction of sunrise and sunset on the equinoxes and solstices. Holes in the wall do the same. Solar noon is marked when sunlight comes through a slot in the South wall and passes a line on the floor.
 
Tucson Arizona USA Equatorial Dial 4
A bronze equatorial dial approximately 2 ft. in diameter designed by R. Newton Mayall. Mayall stated, "When I was asked to design the sundial in front of the Museum at Kitt Peak I was more than pleased, for it gave me a chance to work a semblance of astronomy into it. The design reflects the great telescope nearby, with its base and fork type mounting, the dial itself being the "telescope"."
 
Vail Arizona USA Analemmatic Dial 599
A brass and concrete analemmatic dial set in the Butterfly Garden at Colossal Cave Mountain Park at 3415 feet elevation. The dial is 21 feet E-W across the hour markers. A hand-held rod gnomon 143 inches long includes a bubble level for positioning. There is a modest park use fee to view this dial.
 
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